Successful resection of giant mediastinal “lipoma-like” liposarcoma with multiple myelomas: A case report

Abstract

A 75-year-old male was referred to our hospital because of dyspnea for two months. Chest CT showed a giant mediastinal mass with fat tissue density spreading to the anterior and middle mediastinum. He had multiple myelomas identified on further examination, but we decided on mediastinal tumor resection for the improvement of respiratory symptoms before multiple myeloma treatment. The sternum with myeloma was fragile and difficult to close with wire, and platelet transfusion was necessary for hemostasis due to decreased platelet levels caused by multiple myeloma. The tumor was well-capsulated and resected en bloc with the assistance of thoracoscopy to achieve a lateral view. The pathological diagnosis was “lipoma-like” liposarcoma, being a rare case combined with multiple myeloma.